So, this is a pretty big longshot but I figured I wouldn't lose anything asking. A while back I found a program that had an interactive display for my TI84. I can't remember for the life of me what the program was even used for, it could have been something as simple as a radical simplifier or the likes.
All I do know is, it had a prompt for 3 inputs around the middle of the screen and would display the answer on the top; it was interactive in that you could consistantly change input and receive a real-time answer, so it didn't use the basic prompt command. I wanted to see exactly how they achieved so I could tweak and use it as a base to create other programs with a real-time display, or at least see how they achieved it so I could learn the same baseline.
All I do know is, it had a prompt for 3 inputs around the middle of the screen and would display the answer on the top; it was interactive in that you could consistantly change input and receive a real-time answer, so it didn't use the basic prompt command. I wanted to see exactly how they achieved so I could tweak and use it as a base to create other programs with a real-time display, or at least see how they achieved it so I could learn the same baseline.